Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers
Acute myocardial infarction (AMI) is the leading cause of morbidity and mortality globally. The serum levels of a group of cardiac biomarkers have been regarded as important indicators in the routine diagnosis of AMI. The development of rapid, sensitive, and accurate detection methods of AMI biomark...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/159341 |
| _version_ | 1811676320487178240 |
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| author | Li, Di Xiong, Qirong Lu, Derong Chen, Yonghao Liang, Li Duan, Hongwei |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Li, Di Xiong, Qirong Lu, Derong Chen, Yonghao Liang, Li Duan, Hongwei |
| author_sort | Li, Di |
| collection | NTU |
| description | Acute myocardial infarction (AMI) is the leading cause of morbidity and mortality globally. The serum levels of a group of cardiac biomarkers have been regarded as important indicators in the routine diagnosis of AMI. The development of rapid, sensitive, and accurate detection methods of AMI biomarkers is urgently needed for the early diagnosis of AMI. Here, a dynamic and pseudo-homogeneous enzyme-linked immunosorbent assay (ELISA) was reported based on the combined use of bioconjugated magnetic nanochains (MNCs) and gold nanoparticles (AuNPs) probes. The capture antibodies-conjugated MNCs served as dynamic nano-mixers to facilitate liquid mixing and as homogeneously dispersed capturing agents to capture and separate specific targets. The AuNPs probes were prepared by co-immobilization of detection antibodies and horseradish peroxidase (HRP) for signals amplification. The design of bioconjugated MNCs and AuNPs probes significantly increased the assay kinetics and improves the assay sensitivity. This novel ELISA strategy realized accurate detection of a panel of AMI biomarkers within 35 min, leading to considerably improved sensitivities compared to that of conventional ELISA method. |
| first_indexed | 2024-10-01T02:19:36Z |
| format | Journal Article |
| id | ntu-10356/159341 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:19:36Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1593412022-06-14T06:31:16Z Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers Li, Di Xiong, Qirong Lu, Derong Chen, Yonghao Liang, Li Duan, Hongwei School of Chemical and Biomedical Engineering Engineering::Bioengineering Biomarkers Chemical Detection Acute myocardial infarction (AMI) is the leading cause of morbidity and mortality globally. The serum levels of a group of cardiac biomarkers have been regarded as important indicators in the routine diagnosis of AMI. The development of rapid, sensitive, and accurate detection methods of AMI biomarkers is urgently needed for the early diagnosis of AMI. Here, a dynamic and pseudo-homogeneous enzyme-linked immunosorbent assay (ELISA) was reported based on the combined use of bioconjugated magnetic nanochains (MNCs) and gold nanoparticles (AuNPs) probes. The capture antibodies-conjugated MNCs served as dynamic nano-mixers to facilitate liquid mixing and as homogeneously dispersed capturing agents to capture and separate specific targets. The AuNPs probes were prepared by co-immobilization of detection antibodies and horseradish peroxidase (HRP) for signals amplification. The design of bioconjugated MNCs and AuNPs probes significantly increased the assay kinetics and improves the assay sensitivity. This novel ELISA strategy realized accurate detection of a panel of AMI biomarkers within 35 min, leading to considerably improved sensitivities compared to that of conventional ELISA method. Ministry of Education (MOE) Singapore-MIT Alliance for Research and Technology (SMART) This work is supported by the Singapore-MIT Alliance of Research and Technology Center (ING000383-ENG), the Ministry of Education-Singapore (MOE2018-T2-2-128) and National First-class Discipline Program of Food Science and Technology (JUFSTI201801). Di Li is grateful for financial support from University Scholarship Fund for Overseas Exchange of Jiangnan University and the China Scholarship Council (No. 202006790116). 2022-06-14T06:31:16Z 2022-06-14T06:31:16Z 2021 Journal Article Li, D., Xiong, Q., Lu, D., Chen, Y., Liang, L. & Duan, H. (2021). Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers. Analytica Chimica Acta, 1166, 338567-. https://dx.doi.org/10.1016/j.aca.2021.338567 0003-2670 https://hdl.handle.net/10356/159341 10.1016/j.aca.2021.338567 34022991 2-s2.0-85105314023 1166 338567 en ING000383-ENG MOE2018-T2-2-128 Analytica Chimica Acta © 2021 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Bioengineering Biomarkers Chemical Detection Li, Di Xiong, Qirong Lu, Derong Chen, Yonghao Liang, Li Duan, Hongwei Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| title | Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| title_full | Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| title_fullStr | Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| title_full_unstemmed | Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| title_short | Magnetic nanochains-based dynamic ELISA for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| title_sort | magnetic nanochains based dynamic elisa for rapid and ultrasensitive detection of acute myocardial infarction biomarkers |
| topic | Engineering::Bioengineering Biomarkers Chemical Detection |
| url | https://hdl.handle.net/10356/159341 |
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